test: Add Tests for endpoints

[AmanNegi]

We plan to create tests for our endpoints to ensure consistency and reliability. It will also be beneficial for new team members to gain a better understanding of how the project functions. Therefore, we would greatly appreciate having tests in place. We have decided to use mocha and chai as our testing suite, and we would like tests to be created for the following files:

• src/models/*
• src/routes/*

References:

• https://mochajs.org
• https://www.chaijs.com

It would be great to resolve this issue in chunks by creating small PRs!

Merged PR's

• chore: create tester and add tests #182